Study design: randomized controlled trial with two study arms: usual care provided by cardiologists (control) versus ICCP at a specialized AF-clinic (intervention) in 9 hospitals in the Netherlands. In total 1716 patients with newly diagnosed AF will be included. Total duration of the study is 4,5 years and total mean follow-up will be 2,4 years. Data collected at inclusion, after 3, 6, 12 months and every year thereafter.